120631113 has 40 divisors (see below), whose sum is σ = 190827648. Its totient is φ = 75784896.

The previous prime is 120631109. The next prime is 120631117. The reversal of 120631113 is 311136021.

120631113 is a `hidden beast` number, since 1 + 20 + 631 + 1 + 13 = 666.

It is an interprime number because it is at equal distance from previous prime (120631109) and next prime (120631117).

It is not a de Polignac number, because 120631113 - 2² = 120631109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120631117) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 135556 + ... + 136442.

Almost surely, 2^120631113 is an apocalyptic number.

It is an amenable number.

120631113 is a deficient number, since it is larger than the sum of its proper divisors (70196535).

120631113 is an equidigital number, since it uses as much as digits as its factorization.

120631113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 120631113 is about 10983.2196099322. The cubic root of 120631113 is about 494.1056025500.

Adding to 120631113 its reverse (311136021), we get a palindrome (431767134).

The spelling of 120631113 in words is "one hundred twenty million, six hundred thirty-one thousand, one hundred thirteen".